Home / 2,638.44-3,642.60-1,755.48

Finding the Fourth Proportional to 2,638.44, 3,642.60 and 1,755.48

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Solution

The fourth proportional to 2,638.44, 3,642.60 and 1,755.48 is: 2,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.44 : 3,642.60 = 1,755.48 : x
  2. Step 2: Convert to fraction form
    2,638.44/3,642.60 = 1,755.48/x
  3. Step 3: Cross multiply
    2,638.44x = 3,642.60 × 1,755.48
  4. Step 4: Simplify right side
    2,638.44x = 6,394,511.45
  5. Step 5: Solve for x
    x = 6,394,511.45/2,638.44
  6. Step 6: Final answer
    x = 2,423.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.